dart2js: Rename emitters.

pkg/compiler/lib/src/js/js.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library js;
 
 import 'package:js_ast/js_ast.dart';
 export 'package:js_ast/js_ast.dart';
 
 import '../io/code_output.dart' show CodeOutput, CodeBuffer;
-import '../js_emitter/js_emitter.dart' show USE_NEW_EMITTER;
+import '../js_emitter/js_emitter.dart' show USE_LAZY_EMITTER;
 import '../dart2jslib.dart' as leg;
 import '../util/util.dart' show NO_LOCATION_SPANNABLE, Indentation, Tagging;
 import '../dump_info.dart' show DumpInfoTask;
 import 'js_source_mapping.dart';
 
 CodeBuffer prettyPrint(Node node,
                        leg.Compiler compiler,
                        {DumpInfoTask monitor,
                         bool allowVariableMinification: true,
                         Renamer renamerForNames:
                             JavaScriptPrintingOptions.identityRenamer}) {
   JavaScriptSourceInformationStrategy sourceInformationFactory =
       compiler.backend.sourceInformationStrategy;
   JavaScriptPrintingOptions options = new JavaScriptPrintingOptions(
       shouldCompressOutput: compiler.enableMinification,
       minifyLocalVariables: allowVariableMinification,
-      preferSemicolonToNewlineInMinifiedOutput: USE_NEW_EMITTER,
+      preferSemicolonToNewlineInMinifiedOutput: USE_LAZY_EMITTER,
       renamerForNames: renamerForNames);
   CodeBuffer outBuffer = new CodeBuffer();
   SourceInformationProcessor sourceInformationProcessor =
       sourceInformationFactory.createProcessor(
           new SourceLocationsMapper(outBuffer));
   Dart2JSJavaScriptPrintingContext context =
       new Dart2JSJavaScriptPrintingContext(
           compiler, monitor, outBuffer, sourceInformationProcessor);
   Printer printer = new Printer(options, context);
   printer.visit(node);
@@ skipping 111 matching lines @@
         }
       }
       _cachedLiteral = js.escapedString(text);
     }
     return _cachedLiteral;
   }
 
   @override
   String get value => _literal.value;
 }